import hashlib
from django.conf import settings
import uuid


def md5(string):
    """ MD5加密 """
    hash_object = hashlib.md5(settings.SECRET_KEY.encode("utf-8"))
    hash_object.update(string.encode("utf-8"))

    return hash_object.hexdigest()


def uid(string):
    data = '{}-{}'.format(str(uuid.uuid4()), string)

    return md5(data)






